Frappe ERPNext versions before 15.121.0 and 16.x before 16.34.0 contain an information disclosure vulnerability in whitelisted timesheet endpoints that fail to enforce doctype permissions. Authenticated attackers can call get_projectwise_timesheet_data, get_timesheet_detail_rate, and get_timesheet endpoints to enumerate and retrieve billable time logs including project names, billing amounts, and work descriptions without proper authorization checks.
CWE-862